On our enduring research on revealing all details from vinyl records not only mechanical parameters are of importance. Even more, electrical parameters come into focus when having reached a high level of mechanical perfection…for ways of bettering the situation on the electrical side, we had an ultimate power supply on our mind some years ago. Based on batteries – providing seamless battery power at all time – we developped a device to market. However, after a short period of offering, we decided to discontinue the production because of several reasons.